"In order to ensure a consistently high quality browser across our most popular desktop platforms we have reluctantly decided to drop support for Solaris. This will allow our UNIX development team to focus all of their attention on bringing Opera for Linux and FreeBSD up to final release quality, meaning that a 10.5x release for these platforms will happen as soon as feasibly possible". Opera assure us that this will have no effect on the existing Linux and UNIX ports.

I think about the same about future of Sun/Solaris, that it's usage will be increasingly linked to Larry's DB.
However I don't think it will be really bright, just reflecting some shines from the Oracle world.

Some years ago I remember the set of CDs to install Solaris was coming with some bonus & extras, and one of them was a CD for a limited version of Oracle.
In a few years time I won't be surprised to see the opposite, if you buy (for an outrageous amount of money) the DB application, you'll get an OS for free.